I haven't receive it yet, so I have no idea. It looks right, and for the price I figured it was worth the gamble. I can have an adapter machined or modified if necessary. I actually ordered it from an eBay seller who is including the hub/adapter (but for a 1972 Lancia Fulvia). I'll let you know what I actually receive when it comes.
Note that the eBay seller does not ship outside of Italy - It was quite a hassle to arrange shipping to my company's Italy office to then have the package forwarded to me.
I discovered the link I posted above only after I had already ordered the same part from the eBay seller.